JP5586663B2 - Electronics - Google Patents

Description

  Embodiments described herein relate generally to an electronic device such as a portable computer including a hard disk drive.

  For example, a notebook-type portable computer (hereinafter simply referred to as a notebook PC) can be carried and therefore has a risk of falling. When the notebook PC falls, the hard disk drive (hereinafter simply referred to as HDD) is most susceptible to impact, and in the worst case, the HDD may become inoperable.

  For this reason, when attaching the HDD to the notebook PC, a shock-absorbing member is interposed between the notebook PC and the shock applied to the casing from the outside of the notebook PC so as not to be transmitted to the HDD.

JP 2000-277935 A

  However, the impact on the HDD cannot be sufficiently absorbed only by the countermeasures using the conventional buffer member.

  An object of the present invention is to provide an electronic device that can effectively absorb an impact applied to a hard disk drive from the outside.

The electronic device according to the embodiment includes a module, a housing provided with a recess accommodating the module, and a peripheral wall of the recess and a support portion of the bottom wall of the recess supporting the leg of the module. A slit formed in the bottom wall; and a spacer disposed between the bottom wall of the recess and the housing at a position along the peripheral wall that does not overlap the module .

FIG. 1 is a perspective view showing a notebook PC according to the embodiment. FIG. 2 is a bottom view of the main unit of the notebook PC of FIG. 1 viewed from the back side. FIG. 3 is a bottom view showing a state in which the cover on the back surface of the main unit of FIG. 2 is removed. 4 is a cross-sectional view of the main unit of FIG. 3 taken along line F4-F4. FIG. 5 is an enlarged cross-sectional view of a portion indicated by A in the main body unit of FIG. 6 is a bottom view showing a state in which the HDD of the main unit in FIG. 3 is removed. FIG. 7A is a bottom view of the HDD housed in the recess of the main unit of FIG. 3, and FIG. 7B is a side view of the HDD. 8 is a schematic cross-sectional view of the main unit of FIG. 3 taken along line F8-F8. FIG. 9 is a plan view showing a state in which the main body cabinet on the upper surface side of the main body unit in FIG. 3 is removed. FIG. 10 is a schematic cross-sectional view corresponding to FIG. 3 showing an actual deformation state of the buffer structure when an impact is applied from the outside of the main unit of FIG. FIG. 11 is a schematic cross-sectional view for explaining the detailed behavior of the buffer structure when an impact is applied from the outside of the main unit of FIG. FIG. 12 is a schematic cross-sectional view for explaining the behavior of the conventional buffer structure in comparison with FIG. FIG. 13 is a partially enlarged plan view showing a linear slit of the buffer structure according to the second embodiment. FIG. 14 is a partially enlarged plan view showing two slits of the buffer structure according to the third embodiment. FIG. 15 is a partially enlarged plan view showing an L-shaped slit of the buffer structure according to the fourth embodiment. FIG. 16 is a partially enlarged plan view showing a U-shaped slit of the buffer structure according to the fifth embodiment. FIG. 17 is a partially enlarged plan view showing an arc-shaped slit of the buffer structure according to the sixth embodiment. FIG. 18 is a partially enlarged plan view showing a substantially trapezoidal slit of the buffer structure according to the seventh embodiment. FIG. 19 is a schematic view showing a first modification of the slit of the first embodiment of FIG. FIG. 20 is a schematic view showing a second modification of the slit of the first embodiment of FIG. FIG. 21 is a schematic view showing a third modification of the slit of the first embodiment of FIG. FIG. 22 is a schematic view showing a fourth modification of the slit of the first embodiment of FIG.

  Below, with reference to FIGS. 1-12, embodiment of an electronic device is described. In this specification, the front side (that is, the user side) is the front direction F, the back side as viewed from the user is the rear direction R, the left side when viewed from the user is the left direction, the right side when viewed from the user is the right direction, and the user is viewing it The upward direction is defined as the upward direction, and the downward direction as viewed from the user is defined as the downward direction.

  As shown in FIG. 1, a notebook PC 11 that is an example of an electronic device includes a main body unit 12, a display unit 13, and a hinge portion 14 provided between the main body unit 12 and the display unit 13. The hinge unit 14 rotatably attaches the display unit 13 to the rear end of the main unit 12.

  The display unit 13 includes a display 15 and a synthetic resin display cabinet 16 surrounding the display 15. As an example of the display 15, in this embodiment, a liquid crystal display is mounted on the display unit 13.

  FIG. 1 shows a state in which the display unit 13 is raised with respect to the main unit 12 and the display 15 is opened. However, the display unit 13 is closed and the display 15 is overlaid on the upper surface of the main unit 12. It can also be placed in position.

  As shown in FIGS. 1 to 4, the main unit 12 includes, for example, a main body cabinet 21 (housing) formed in a box shape from a synthetic resin, a keyboard 22 and a touch pad attached to the upper surface side of the main body cabinet 21. 23, a recessed portion 24 (module housing portion) having a bathtub structure formed to be opened on the bottom side of the main body cabinet 21, a printed circuit board 25 accommodated inside the main body cabinet 21, and a recess 24 of the main body cabinet 21 A hard disk drive (HDD) 26 (module) accommodated in the housing 26 and a cover 27 (cover portion) at least partially opposed to the surface (first surface) of the HDD 26 so as to cover the recess 24 in which the HDD 26 is accommodated. ) (See FIG. 2) and a connecting portion 28 built in a part of the main body cabinet 21. The

  As shown in FIG. 5, the main body cabinet 21 has a shield layer 31 that is a metal thin film formed on the inner surface by a technique such as sputtering. In the shield layer 31, electromagnetic waves generated from circuit components and the like inside the main body cabinet 21 pass through the main body cabinet 21 and leak to the outside, and conversely, external electromagnetic waves adversely affect circuit components inside the main body cabinet 21. Is prevented.

  The HDD 26 is substantially fixed to the outside of the main body cabinet 21 although it is in the recess 24. The HDD 26 is electrically connected to the printed circuit board 25 inside the main body cabinet 21 while being accommodated in the recess 24. The printed circuit board 25 has circuit components such as a CPU. The opening of the recess 24 is closed by the cover 27.

  As shown in FIGS. 3 to 6, the HDD 26 can be mounted in the recess 24 or removed from the recess 24 through the opening on the lower surface side of the main body cabinet 21. The HDD 26 includes a case 32 formed by bending a metal sheet metal into a box shape, an HDD unit housed in the case 32, and a mounting bracket 33 attached to the outside of the case 32. The case 32 forms an outer shell of the HDD 26.

  The connection portion 28 is provided integrally with the main body cabinet 21 and extends from the vicinity of the opening 29 of the main body cabinet 21 and protrudes in an arm shape. An opening 29 is provided around the connection portion 28. The connecting portion 28 protrudes into the opening 29. The connection part 28 is electrically connected to the shield layer 31 via the opening 29. The connecting portion 28 extends in a direction parallel to the surrounding main body cabinet 21. The connection portion 28 has electrical conductivity and elastically contacts the case 32 to make the potential of the case 32 and the mounting bracket 33 equal to the potential of the shield layer 31.

  The connection portion 28 includes a contact portion 34 that contacts the case 32 of the HDD 26 and a support portion 35 that supports the contact portion 34 in a cantilevered manner. The contact portion 34 is provided at the distal end portion of the connection portion 28.

  The contact portion 34 protrudes toward the case 32 so as to be closer to the case 32 than the support portion 35. As shown in FIG. 5, the support portion 35 supports the contact portion 34 so that the contact portion 34 can advance and retreat in a direction D that is substantially orthogonal to (intersects) the contact surface of the case 32. The connecting portion 28 includes a synthetic resin main body portion 36, a conductive coating layer 37 surrounding the main body portion 36, and a through hole 38 that penetrates the main body portion 36 in the thickness direction. Have. As shown in FIG. 6, the through hole 38 is formed as a long hole and is elongated in a direction along the direction in which the connection portion 28 extends.

  In the present embodiment, the coating layer 37 is made of an aluminum sheet. The covering layer 37 connects the case 32 of the HDD 26 to the shield layer 31 of the main body cabinet 21.

  According to the above configuration, since the case 32 of the HDD 26 can be grounded to the shield layer 31 of the housing by the connecting portion 28 provided in a part of the housing, a separate conductive member is not required, and the number of parts is reduced. As a result, the manufacturing cost can be reduced.

  Further, the support part 35 supports the contact part 34 in a cantilevered manner so as to be able to advance and retreat in a direction D substantially orthogonal (crossing) with the contact surface of the case 32. According to this configuration, the configuration in which the contact portion 34 is brought into elastic contact with the conducting portion 32 can be realized with a very simple structure.

  Further, the connection portion 28 includes a resin main body portion 36 and a conductive coating layer 37 that covers the periphery of the main body portion 36. According to this configuration, the connection portion 28 can be provided with conductivity and elasticity. The support portion 35 has a through-hole 38 that penetrates in the thickness direction, and the through-hole 38 extends along the direction in which the connection portion 28 extends. According to this configuration, the support portion 35 can have further elasticity.

  In the present embodiment, the support portion 35 is configured to support the contact portion 34 in a cantilever manner, but is not limited to this, and the support portion 35 supports the contact portion 34 in both ends. There may be.

Hereinafter, the buffer structure 40 for buffering the HDD 26 in the recess 24 will be described.
Before that, the outline of the HDD 26 will be briefly described with reference to FIGS. 7 (a) and 7 (b). The HDD 26 has a thin flat, substantially rectangular block-shaped outer shape. On the back surface 26a (second surface) where the HDD 26 faces the bottom wall 41 of the recess 24, a plurality (four in the present embodiment) of substantially cylindrical leg portions 51 (first protrusion, contact portion), and A cylindrical motor housing 52 (second protrusion) is provided so as to protrude.

  The motor housing 52 is provided at a position corresponding to a motor (not shown) of the HDD 26. Each of the four leg portions 51 is disposed near the periphery of the rectangular back surface 26a. The protruding height of the motor housing 52 from the back surface 26 a is lower than the protruding height of each leg 51.

  On the other hand, as shown in FIG. 6, four U-shaped slits 42 according to the first embodiment are provided on the bottom wall 41 of the recess 24 of the bathtub structure in which the HDD 26 is accommodated and disposed as a part of the buffer structure 40. (Openings) are respectively formed through the bottom wall 41.

  These four U-shaped slits 42 are provided so as to surround each leg 51 corresponding to the four legs 51 of the HDD 26 described above. In FIG. 6, the positions (supporting portions) of the leg portions 51 with respect to the slits 42 are indicated by broken lines. In addition, since the recessed part 24, ie, the bottom wall 41, is formed with the plastic material, the site | part of the bottom wall 41 enclosed by the U-shaped slit 42 can deform | transform like a spring.

  More specifically, the U-shaped slit 42 formed in the bottom wall 41 is formed on the bottom wall 41 between the peripheral wall 43 surrounding the HDD 26 and the contact portion of the leg portion 51 of the HDD 26 and substantially parallel to the peripheral wall 43. The first slit 42a is formed, and two second slits 42b extending from both ends of the first slit 42a substantially in parallel to each other in a direction away from the peripheral wall 43, respectively. The two second slits 42 b extend outside the leg portion 51 of the HDD 26 to a position farther from the peripheral wall 43 than the leg portion 51.

  A rectangular buffer member 44 having elasticity is affixed on the inner surface of the bottom wall 41 surrounded by the U-shaped slit 42. The buffer member 44 extends along the longitudinal direction of the HDD 26. In other words, the first slit 42 a and the second slit 42 b of the slit 42 have a shape extending along the outer edge of the buffer member 44.

  The buffer member 44 abuts on the tip of the leg portion 51 of the HDD 26 in a state where the HDD 26 is accommodated in the recess 24. In other words, each buffer member 44 provided corresponding to each of the four slits 42 is interposed between a portion of the bottom wall 41 surrounded by the slit 42 of the recess 24 and the leg portion 51 of the HDD 26.

  Note that the HDD 26 is attached to the recess 24 via a mounting bracket 33. The mounting bracket 33 can be modified to allow the HDD 26 to move in the left-right direction. For this reason, the shape of the buffer member 44 with which the leg portions 51 of the HDD 26 are brought into contact with each other is such that the longitudinal direction thereof is along the moving direction of the HDD 26 (that is, the left-right direction).

  Further, since the recess 24 has a bathtub structure, the rigidity near the peripheral wall 43 rising from the peripheral edge of the bottom wall 41 is high, and the rigidity is increased as it approaches the center of the bottom wall 41 (as it moves away from the peripheral wall 43). Lower. For this reason, the bottom wall 41 formed of a plastic material becomes easier to be deformed as the distance from the peripheral wall 43 increases. In other words, the bottom wall 41 is a portion having the highest rigidity near the peripheral wall 43.

  In addition, a circular hole 45 (opening) facing the motor housing 52 of the HDD 26 is formed through the bottom wall 41 in a state where the HDD 26 is accommodated in the recess 24. The hole 45 in the bottom wall 41 prevents the motor housing 52 from contacting the bottom wall 41 when the HDD 26 approaches the bottom wall 41 of the recess 24 when an impact is applied from the outside of the notebook PC 11 due to dropping or the like. In order to prevent the motor housing 52 from escaping, the motor housing 52 is provided. For this reason, the hole 45 of the bottom wall 41 has a diameter (outer edge dimension) that is slightly larger than the diameter of the motor housing 52.

  As shown in FIG. 8, the position along the peripheral wall 43 of the recess 24 is between the back surface 41 a of the bottom wall 41 of the recess 24 and the inner surface 21 a of the main body cabinet 21 (first wall) on the upper surface side of the main body unit 12. A plurality of ribs 46 functioning as spacers for maintaining the gap G are provided. Since the plurality of ribs 46 are provided along the peripheral wall 43 between the bottom wall 41 of the recess 24 and the main body cabinet 21, the ribs 46 are disposed at positions that do not overlap with the HDD 26 accommodated in the recess 24. Will be.

  In the present embodiment, as shown in FIG. 9, the two ribs 46 are integrally projected from the back surface 41 a of the bottom wall 41 of the recess 24 at a position away from the slit 42. Note that the number of the ribs 46 may be three or more, and may be disposed outside the area overlapping the HDD 26. These ribs 46 may be provided integrally or separately from the inner surface 21a of the main body cabinet 21.

  A gap G between the bottom wall 41 of the recess 24 and the main body cabinet 21 maintained by the plurality of ribs 46 is obtained when the portion of the bottom wall 41 surrounded by the U-shaped slit 42 is deformed as described later. This is provided so that the deformed portion of the bottom wall 41 does not contact the inner surface 21 a of the main body cabinet 21. The entire recess 24 is provided with a plurality of ribs 46, so that it does not move in a direction approaching the main body cabinet 21 even when an impact is applied to the main body cabinet 21 due to a drop of the notebook PC 11 or the like.

  Further, since the gap G is provided, for example, as shown in FIG. 9, the flexible printed wiring board 56 for connecting the small board 55 to the printed circuit board 25 is connected to the bottom wall 41 of the recess 24 and the main body cabinet 21 (FIG. 9). (Not shown in the figure). That is, since the flexible printed wiring board 56 disposed at this position passes through a position that does not overlap the U-shaped slit 42, the portion of the deformed bottom wall 41 does not interfere.

  Hereinafter, the operation of the buffer structure 40 described above will be described with reference to FIGS. 10 and 11 together with FIG. Here, it is assumed that the notebook PC 11 is dropped with the display unit 13 side down while the display unit 13 of the notebook PC 11 is closed on the upper surface of the main unit 12. In other words, the buffer structure 40 functions most effectively when the notebook PC 11 falls in this posture.

  That is, as shown in FIG. 8, when the notebook PC 11 falls downward in the figure with the back surface of the main unit 12 facing upward, an impact is transmitted from the lower part of the figure to the main body cabinet 21 via the display unit 13, The impact is directly transmitted from 21 a to the peripheral wall 43 of the recess 24 through the plurality of ribs 46. As a result, a strong force acting downward in FIG. 8 acts on the HDD 26, and as shown in FIG. 10, the plurality of buffer members 44 are compressed and deformed, and the bottom surrounded by the U-shaped slits 42 on the three sides. The part of the wall 41 is tilted downward.

  More specifically, when the notebook PC 11 falls downward in the figure in the state of FIG. 11A, a strong impact is given to the main body cabinet 21 on the upper surface side of the main body unit 12 from the lower side of the figure. This impact is transmitted from below in the figure to the peripheral wall 43 of the recess 24 via the plurality of ribs 46, and the reaction causes the HDD 26 to move downward in the figure by the inertial force caused by dropping.

  At this time, first, as shown in FIG. 11B, the buffer member 44 disposed between the bottom wall 41 corresponding to the four leg portions 51 of the HDD 26 is compressed and deformed to absorb the impact (first). One-stage shock absorption). Then, after the compression deformation of the buffer member 44 reaches the limit, the portion of the bottom wall 41 surrounded on three sides by the slits 42 sinks downward as shown in FIG. 11C to further absorb the impact. (2nd stage shock absorption). In FIG. 11, for easy understanding, the deformation of the bottom wall 41 is illustrated as a linear movement toward the lower side instead of an actual tilt.

  In other words, the shape, width and length of the slit 42, the distance from the peripheral wall 43, the thickness of the bottom wall 41, and the material and thickness of the buffer member 44 are first introduced when absorbing external impacts. The buffer member 44 was elastically deformed, and then the bottom wall 41 was elastically deformed.

  As described above, according to the buffer structure 40 of the present embodiment, when an impact along the above-described direction is applied to the notebook PC 11, the plurality of buffer members 44 compress and deform to absorb the impact as a first step. In the second stage, since the portion of the bottom wall 41 surrounded by the U-shaped slit 42 can be elastically deformed to absorb the impact, vibrations acting on the HDD 26 can be almost eliminated.

  On the other hand, for example, according to the conventional buffer structure shown in FIG. 12 (that is, the structure having no slit 42 in the bottom wall 41), when an impact is applied from the outside of the notebook PC 11, as shown in FIG. In addition, only the buffer member 44 is compressed and deformed to absorb the impact, and the bottom wall 41 of the recess 24 is hardly deformed, so that the impact cannot be absorbed to a sufficiently satisfactory degree.

  In particular, according to the present embodiment, since the rib 46 that transmits the impact is opposed to the peripheral wall 43 of the recess 24, the impact can be released to the most rigid portion of the recess 24, and the impact transmitted directly to the HDD 26 can be almost eliminated. it can. Further, in this case, since the slit 42 of the present embodiment has the first slit 42a between the leg portion 51 and the peripheral wall 43, it is possible to cut the impact transmitted directly to the leg portion 51 through the peripheral wall 43. Can absorb the impact from the outside more effectively.

  In addition, according to the present embodiment, the rib 46 that transmits the impact from the main body cabinet 21 to the recess 24 is provided at a position separated from the leg portion 51 of the HDD 26, so that vibration is transmitted while the impact is transmitted from the rib 46 to the leg portion 51. It can be sufficiently attenuated, and the buffer performance can be improved accordingly.

  Further, according to the present embodiment, since the plurality of ribs 46 are interposed between the bottom wall 41 of the recess 24 and the main body cabinet 21 to ensure the gap G between the two, the bottom wall 41 inside the slit 42 is secured. Can be prevented from coming into contact with the main body cabinet 21 when it is deformed. Thereby, it is possible to prevent a problem that undesired vibration is transmitted to the HDD 26 through the deformed bottom wall 41.

  Further, according to the present embodiment, since the motor housing 52 protruding from the back surface 26a of the HDD 26 is released, the hole 45 is provided in the bottom wall 41 of the recess 24, so that the buffer member 44 is crushed and the portion of the bottom wall 41 in the slit 42 is provided. Even when the HDD 26 comes close to the bottom wall 41 when it is deformed, it is possible to prevent a problem that the two come into contact with each other, and it is possible to prevent a problem that an unwanted vibration is transmitted to the HDD 26 due to the contact. In particular, in the present embodiment, no protrusions are provided on the inner surface 41b (FIG. 6) of the bottom wall 41 of the recess 24 in order to avoid contact between members as described above.

  Hereinafter, other embodiments of the buffer structure described above, particularly other embodiments of the slit, will be described with some examples. In the following description, components that function in the same manner as in the above-described embodiment will be given the same reference numerals, detailed description thereof will be omitted, and only the changes will be described in detail.

  FIG. 13 shows a slit 61 of the buffer structure according to the second embodiment. The slit 61 is provided in a portion of the bottom wall 41 between the leg portion 51 of the HDD 26 and the peripheral wall 43 of the recess 24, and extends in a straight line beyond the entire length in the longitudinal direction of the buffer member 44. The slit 61 is disposed at the most effective position in order to make it difficult to transmit the impact directly transmitted to the peripheral wall 43 via the rib 46 to the leg portion 51, and the slit 42 of the first embodiment described above. Thus, there is also an advantage that the shape can be simplified by omitting the two slits 42b extending in the direction away from the peripheral wall 43.

  FIG. 14 shows two slits 62a and 62b of the buffer structure according to the third embodiment. The buffer structure of the third embodiment is a slit extending in parallel with the slit 62a at a position spaced apart from the peripheral wall 43 with the leg portion 51 in between the slit 62a formed at the same position as the slit 61 of the second embodiment. 62b is added. Therefore, this buffer structure provides a structure that is slightly deformable as compared with the second embodiment.

  FIG. 15 shows an L-shaped slit 63 of the buffer structure according to the fourth embodiment. Both ends of the slit 63 extend beyond the width of the buffer member 44 and are formed along the corners of the bottom wall 41 of the recess 24. The slit 63 is also provided at a portion of the bottom wall 41 between the peripheral wall 43 and the leg portion 51 in order to effectively absorb the impact transmitted from the peripheral wall 43.

  FIG. 16 shows a U-shaped slit 64 of the buffer structure according to the fifth embodiment. The slit 64 has a shape obtained by rotating the slit 42 of the first embodiment described above by 90 °, that is, a shape in which the opposite end portions of the two slits 62a and 62b of the third embodiment are connected to each other.

  FIG. 17 shows an arc-shaped slit 65 of the buffer structure according to the sixth embodiment. FIG. 18 shows a trapezoidal slit 66 having no bottom as the buffer structure according to the seventh embodiment. Is shown. In addition, the slit may have any shape, and it is sufficient that at least a part of the slit is provided between the leg portion 51 and the peripheral wall 43.

  Further, FIG. 19 shows a slit 67 in which both ends inside the slit are arcuate as a first modification of the slit 42 of the first embodiment described above, and FIG. 20 shows a second modification. FIG. 21 shows a slit 69 in which both ends of the slit are made circular, and FIG. 21 shows a slit 69 in which both ends of the slit are bent at substantially right angles as a third modification. As a fourth modification, a slit 70 is shown in which both ends of the slit are bent inward at substantially right angles.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  For example, in the above-described embodiment, the case where the four slits corresponding to the four leg portions 51 of the HDD 26 are formed in the bottom wall 41 of the recess 24 has been described. The number of can be arbitrarily set.

  Hereinafter, the invention described in the scope of claims at the beginning of the application of the present application will be added.

[1]
A plurality of first protrusions having a first surface and a second surface positioned on the opposite side of the first surface, the peripheral surfaces being protruded from the second surface side, and the first surface; A hard disk drive provided with a second protrusion that is located on the inner side of the protrusion and protrudes from the second surface side at a lower height than the first protrusion;
The first wall and a second wall located on the opposite side of the first wall and provided with a support portion are opened on the second wall side and support the first protrusion. A housing having a bottom wall and a peripheral wall surrounding the hard disk drive, and provided with a recess in which the hard disk drive is accommodated;
A cover that is attached to the second wall of the housing and that at least partially opposes the first surface of the hard disk drive and covers the recess;
With
The concave portion is located near the first protrusion and is positioned closer to the peripheral wall than the first protrusion, and a plurality of first protrusions positioned between the bottom wall and the peripheral wall. An electronic device characterized by being provided with a slit.

[2]
The bottom wall is provided with second slits that extend from both ends of the first slit to the positions farther from the peripheral wall than the first protrusion through the outside of the first protrusion. [1] electronic equipment.

[3]
[2] The electronic device according to [2], wherein the electronic device includes a spacer that is provided at a position that does not overlap with the hard disk drive, along the peripheral wall in the housing, and that separates the bottom wall from the first wall.

[4]
Between the bottom wall and the first protrusion, a buffer member having elasticity is provided,
The electronic device according to [3], wherein each of the first slit and the second slit has a shape extending along an outer edge of the buffer member.

[5]
[4] The electronic device according to [4], wherein the buffer member has a longitudinal direction provided along a longitudinal direction of the hard disk drive.

[6]
The second protrusion is provided at a position corresponding to the motor of the hard disk drive,
[2] The electronic device according to [2], wherein the bottom wall is provided with an opening having an outer edge size larger than that of the second protrusion and positioned corresponding to the second protrusion.

[7]
[1] The electronic device according to [1], wherein the concave portion is provided with a third slit positioned with the first protrusion between the first slit and the first slit.

[8]
The peripheral wall is provided with a corner,
The electronic device according to [1], wherein the first slit is positioned between the corner and the first protrusion.

[9]
Module,
The module is housed and extends in the thickness direction and surrounds the module, and extends between the surrounding wall and the supporting portion where the module is supported, and between the supporting portion and the surrounding wall. A support wall provided with a positioned opening, and a housing provided with a module housing part,
Electronic equipment having

[10]
The module has a contact portion that is supported by being supported by the support portion,
[9] The electronic device according to [9], wherein the opening surrounds the contact portion from at least two different directions.

  DESCRIPTION OF SYMBOLS 11 ... Notebook PC, 12 ... Main unit, 13 ... Display unit, 21 ... Main unit cabinet, 24 ... Recess, 26 ... HDD, 27 ... Cover, 40 ... Buffer structure, 41 ... Bottom wall, 42 ... Slit, 43 ... Perimeter wall, 44 ... buffer member, 45 ... hole, 46 ... rib, 51 ... leg, 52 ... motor housing, 56 ... flexible printed wiring board, G ... gap.

Claims (7)

Module,
A housing provided with a recess housing the module;
A slit formed in the bottom wall between the peripheral wall of the recess and the support portion of the bottom wall of the recess that supports the leg of the module;
Between the bottom wall of the recess and the housing, a spacer disposed at a position along the peripheral wall that does not overlap the module;
Electronic equipment having The electronic device according to claim 1 , wherein the slit surrounds the leg portion from at least two different directions. The electronic device according to claim 1 , wherein at least one end of the slit extends to a position farther from the peripheral wall than the leg portion. The electronic device of Claim 1 which has further another slit located on both sides of the said leg part between the said slits. 5. The electronic device according to claim 1, wherein the casing includes a first wall and a second wall provided on the side opposite to the first wall and provided with the concave portion. The electronic apparatus according to claim 5 , further comprising an elastic buffer member disposed between a leg portion of the module and a bottom wall of the recess, wherein the slit has a shape along an outer edge of the buffer member. The slit, when an external impact is applied to the electronic apparatus, according to claim 6 having the buffer member First deformed said bottom wall is controlled to deform the width and / or length to the next Electronics.

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